[gnome-settings-daemon] media-keys: Fix compile-time warning

[Bastien Nocera <hadess src gnome org>]

commit 917f6c6c23fbb5a0d1a3cc7fd74b9db19678c5a4
Author: Bastien Nocera <hadess hadess net>
Date:   Tue Apr 17 18:44:36 2012 +0100

    media-keys: Fix compile-time warning

 plugins/media-keys/test-media-window-clutter.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/plugins/media-keys/test-media-window-clutter.c b/plugins/media-keys/test-media-window-clutter.c
index 69c8cdc..2e5bb44 100644
--- a/plugins/media-keys/test-media-window-clutter.c
+++ b/plugins/media-keys/test-media-window-clutter.c
@@ -1,6 +1,7 @@
 // gcc -o test-media-window-clutter `pkg-config --libs --cflags clutter-1.0 gtk+-3.0 cairo` -I../../ -lm test-media-window-clutter.c gsd-osd-window.c
 
 #include <stdlib.h>
+#include <string.h>
 
 #include <gtk/gtk.h>
 #include <clutter/clutter.h>